The design of HFC network management data modulator based on PLL
Guo Yu-wu · Journal of Xi'an University of Engineering Science and Technology · 2006
The data modulator is designed based on PLL,it is mainly used in data transfer of HFC network.FSK modulating mode and 100kHz frequency deviation are adopted.Some characters such as high frequency stability,wide overlay scope and prompt change of carrier frequency are exhibited in the modulation.